rustc-ap-rustc_errors 639.0.0

Automatically published version of the package `rustc_errors` in the rust-lang/rust repository from commit 8c73fa70f390efa88e6b0adc58d2bd72fcc51915 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish

Diagnostics creation and emission for rustc.

This module contains the code for creating and emitting diagnostics.